Recently, I wanted to look up a car on CarGurus.com. I have used this site repeatedly with Firefox but it gave me "Cannot Access Website" error. I am an IT Tech and did a Cache Purge, then a deinstall-reinstall, and finally a Total and Complete Deinstall down to Registry level. No Help!!! Then someone responded on here saying they had the same problem. When I went to check, I was able to connect. Today, Same Thing!!! Chrome works, Firefox does not, so here I am writing again about an Issue I believe is a Firefox Issue. You need to look into this Folks!!!